| Age (years) | Frequency | Percentage |
| 11 - 20 | 16 | 32 |
| 21 - 30 | 21 | 42 |
| 31 - 40 | 7 | 14 |
| 41 - 50 | 4 | 8 |
| 51 - 60 | 1 | 2 |
| >60 | 1 | 2 |
| Total | 50 | 100.0 |